SelectorExampleExample description elementpSelects all <p> elements #id#firstnameSelects the element with id="firstname" **Selects all elements .class.intro p.introSelects all elements with class="intro" Selects
SelectorExampleExample descriptionCSS .class.introSelects all elements with class="intro"1 #id#firstnameSelects the element with id="firstname"1 **Selects all elements2 elementpSelects all <p> elements1 element,elementdiv, pSelects all <div> elements and all <p> elements1 ...
AI代码解释 /* Select all <div> elements that contain a <p> element. */div:has(p){background-color:blue;}/* Select all <div> elements that contain a child element with the class "important". */div:has(.important){border:1px solid black;}/* Select all <div> elements that contain ...
The CSS class selector matches elements based on the contents of their class attribute. cssCopy to Clipboard /* All elements with class="spacious" */ .spacious { margin: 2em; } /* All <li> elements with class="spacious" */ li.spacious { margin: 2em; } /* All <li> elements with...
All textual <input>, <textarea>, and <select> elements with class="form-control" are set to width: 100%; by default.Standard rules for all three form layouts:Wrap labels and form controls in <div class="form-group"> (needed for optimum spacing) Add class .form-control to all textual...
This library also allows you to create selector targeting multiple elements at once. You do that by calling the same function, but you provide an array of elements instead of single element: <body><!-- firstElement --><divclass="aaa bbb"></div><!-- secondElement --><spanclass="bbb...
类选择器(Class Selector) 通过HTML元素的 class 属性来选取元素。 当使用类选择器时,您可以通过为HTML元素添加class属性来选择并应用样式。让我们通过一个实际的例子来说明: 假设我们有以下HTML代码,表示一个产品列表,每个产品都有标题和描述: <div class="product"> ...
Currently the optimizer doesn't care about changing order safety for out-of-bounds selectors (i.e. selectors that match to elements without class name, e.g..scope divor.scope ~ :last-child). It assumes that scoped CSS modules doesn't relay on it's order. It may be fix in future if...
Global CSS settings, fundamental HTML elements styled and enhanced with extensible classes, and an advanced grid system.Overview Get the lowdown on the key pieces of Bootstrap's infrastructure, including our approach to better, faster, stronger web development. HTML5 doctype Bootstrap makes use of...
{height:26px;line-height:26px;border-bottom:1px dashed lightblue;}.lastLi{margin-bottom:-1px;/*意思是向上移回1px 跟框框重合了*/}</style></head><body><div id="news"><ul><li>ItemA</li><li>ItemB</li><li>ItemC</li><li>ItemD</li><liclass="lastLi">ItemE</li></ul></div>...